Polaris 2003 MSX owner manual Spark Plugs

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Spark Plugs

Always use the recommended spark plugs for your Polaris watercraft and make sure the spark plug gap is within specification. Measure gap (1) with a wire thickness gauge.

SUse NGK PZFR6H spark plugs.

SProper electrode gap is .028″ +/- .002″(.71 mm +/- .05 mm).

SSpark plug torque is 18 ft. lbs. (24 Nm).

1

CAUTION

Using non-recommended spark plugs can result in serious engine damage. Always use the spark plugs recommended for your Polaris watercraft.

MAINTENANCE AND LUBRICATION

Spark plug condition is indicative of engine operation. The spark plug firing end condition should be read after the engine has been warmed up and the vehicle has been driven at higher speeds. Immediately check the spark plug for correct color.

SA slightly brownish tip is considered normal. The engine is running properly.

SA yellow tip is caused by salt water mist ingestion. This conductive coating will eventually cause foul- ing. This is a normal situation.

NOTE: If the spark plug tip is black or grey, have the watercraft serviced by an authorized Polaris dealer as soon as possible.

SA black tip indicates several potential problems: the wrong spark plug (wrong heat range) is being used; excessive idling occurs; the carburetor idle speed mixture or high speed mixture is too rich or the RPM limiter is malfunctioning.

SA light grey or white tip indicates that the wrong spark plug (wrong heat range) is being used; the car- buretor idle speed mixture is too lean; a fuel filter is plugged or an engine seal or gasket is leaking.

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Contents MSX Page We’ve created a web site, just for YOU Page Polaris Professional Series Workmobilest WelcomePolaris Recreational Vehicles Table of Contents Do Your Part Your ResponsibilitiesAge Restrictions Maintenance RequirementsIdentification Numbers Signal Words and Symbols SafetySafety Decals Safety To Avoid Collisions Righting Capsized Boat Located on the engine water manifold Informational DecalsOperator Guidelines Operator SafetySafety Suit/Shoes/Gloves Safe Riding GearPersonal Floatation Device Eye ProtectionOverloading the Watercraft Fire SafetyProtective Apparel Weather and DarknessObstacles and Shallow Water Pre-Operation Check Service and MaintenanceTurning and Accelerating Lifting the Watercraft Jet Pump Water Intake SafetyElectrical Shock Hazard Safe Riding PositionBoating Under the Influence Operator AwarenessOperator Fitness To avoid hypothermia Vehicle ModificationsOperator Fatigue and Dehydration HypothermiaExhaust Outlet Reverse Gate Features and Controls911 Reverse Operation Handle Features and Controls Engine Components under seat Engine Components Primary Functions Accessible FunctionsNew Generation Instrument NGI Function Overview Instrument Operation Display ModeCheck Engine Display WarningsRPM Limiter Optional Equipment AccessoriesStandard Equipment California Star Labels EmissionsEPA Emissions Regulations Three Stars Ultra Low Emission One Star Low EmissionTwo Stars Very Low Emission Pre-Operation Inspection OperationWhat To Do Fuel Refueling Oil Ride Plate Impeller Drive Shaft Jet Pump IntakeEngine and Storage Compartments SteeringThrottle Fire Extinguisher Loose PartsSeat Battery Riding Gear HullDrain Plugs and Bilge Switches/Buttons Principles of Operation Engine Break-in ProcedureOperation Give-way Vessel Navigational RulesRight-of-way and Give-way Stand-on VesselMeeting Vessels RuleEncountering Vessels Crossing Paths Overtaking VesselsFishing Vessel Right-of-Way Non-Motorized CraftLaunch Ramp Etiquette Avoid CollisionsReading Buoys and Markers Stopping the Engine Launching the WatercraftStarting the Engine Before Starting the EngineIf the Engine Doesn’t Start Boarding and Starting in Deep Water Operator Only Boarding the WatercraftBoarding With a Passenger Turning the Watercraft Reverse OperationStopping the Watercraft Beaching the Watercraft Operating in Rough Conditions Towing a Disabled Watercraft Righting a Capsized Watercraft Operating With Passengers Daily Care Post Operation MaintenanceOperation Temporary Storage Transporting The Watercraft Submerged Waterlogged Engine Anti-Corrosion TreatmentEngine Water Removal Procedure General Maintenance Maintenance and LubricationMaintenance Schedule Key Periodic Maintenance ScheduleDescription Fuel System Hull / Deck / Steering / Controls Drive Line Steering Cable Joints and Inner WireLubrication Throttle CableSteering Handle Pivot Shaft Seat Latch And Hooks Steering Nozzle Pivot ShaftThrottle Body And Oil Injection Pump Electrical ConnectionsSpark Plugs Maintenance and Lubrication Hull and Deck Care Polaris Nature Oil Synthetic Lubricant OilPolaris VES II Synthetic Lubricant Polaris Premium Gold Synthetic LubricantThrottle Cable Inspection Steering Cable InspectionFuses Antidote BatteryBattery Maintenance and Charging Replenishing Battery FluidBattery Removal Battery Charging Battery Storage Battery InstallationJet Pump Water Inlet Screen Salt Water and Unclean Water CareCooling System Flushing Engine and Exhaust System Draining Extended StorageWatercraft Engine Fogging Procedure Cleaning Lubrication Engine Turns Over But Doesn’t Start Engine TroubleshootingEngine Doesn’t Turn Over Engine Runs Irregularly, Stalls or Misfires Possible Weak Spark Cause SolutionEngine Backfires Engine OverheatsEngine Pings or Knocks Engine Loses PowerUnusual Noise or Vibration From Propulsion System Engine RPM is Too High With Limited SpeedOil and Lubricants Polaris ProductsCapacities / Dimensions SpecificationsPropulsion Obtaining Service and Warranty Assistance WarrantyWarranty Policy Engine Oil HOW to Obtain Warranty ServicePolaris Watercraft Engines California Emission Control System Limited WarrantyOWNER’S Warranty Responsibilities 109 Emissions Index111